  <body>
    <h2>Download Defined Simulation/s</h2>
    <form method="POST" action="download.php">
    <table class="input">
    <tr><th colspan="2">Download Scenarios</th></tr>
    <?php foreach ($aSims AS $k=>$v)
        {
    ?>
    <tr><td class="label"><?php echo $v; ?></td><td><input name="download[<?php echo $v; ?>]" type="checkbox" value="1"></td></tr>
    <?php
        }
    ?>
    </table>
    <button name="submit" type="submit">Download Selected</button>
    </form>
  </body>
</html>